工作面过软煤带顶板控制研究
张宗光
（山西晋城煤业集团寺河矿，山西 沁水 048200）
摘要： 介绍了寺河矿西井区W2302 （中段）工作面分布有逆断层、正断层、陷落柱、薄煤区、软煤区等对生产影响
较大的构造，特别是软煤区顶板极易垮落，出现漏冒型冒顶，给工作面推进造成了极大的困难。采取留底煤等方法后，
工作面的顶板管理难度明显降低，顶板事故明显减少，工作面的推进速度明显加快，由原来的每天平均2 刀加快到每天
平均7 刀。工作面的周期来压步距明显加长，顶板压力显现明显变弱，工作面2.5 m厚的砂质及碳质泥岩也都能养护住，
没有出现垮落现象。
关键词： 冒顶；采高；抬底板；顶板压力
中图分类号： TD823.97     文献标识码： A     文章编号： 2095-0802-(2020)08-0045-03
Research on Roof Control of Working Face Passing through Soft Coal Zone
ZHANG Zongguang
(Sihe Coal Mine, Jincheng Anthracite Mining Group of Shanxi, Qinshui 048200, Shanxi, China)
Abstract: This paper introduced the structures of W2302 (middle section) working face in the west mine area of Sihe Coal Mine,
which had great influence on production, such as reverse fault, normal fault, collapse column, thin coal area, soft coal area, especially
in soft coal area, the roof was easy to collapse, and leakage type roof fall occured, making it very difficult to push the
working face forward. After adopting the method of keeping bottom coal, the difficulty of roof management in the working face was
obviously reduced, roof accidents were obviously reduced, and the advancing speed of the working face was obviously accelerated,
from the original average of 2 knives per day to the average of 7 knives per day. The periodic weighting step distance of the
working face was obviously longer, the roof pressure was obviously weakened, and the 2.5 m thick sandy and carbonaceous mudstone
of the working face could also be maintained without collapse.

Key words: roof caving; mining height; lifting the floor; roof pressure